Mold for the manufacture of cement blocks.



PATENTED APR. 18, 1905.

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F. GUTTERIDGE. MOLD FOR THE MANUFACTURE OF CEMENT BLOCKS.

APPLIUATION FILED AUG 29 1904 5565. 5? wU /ZZMQM Patented April 18, 1905.

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FRANK (EUTTERIDGE, OF SEAFORTII, LhlNeUflhL MOLD FOR THE MANUFACTURE OF CEMENT BLOCKS.

SPECIFICATION forming part of Letters Patent No. 787,375, dated April 18, 1905.

Application filed August 29, 1904. Serial No. 222,626.

To 0/11 it lll ll l/ (UH/(1877b:

Be it known that I, Fawn Gtrr'rnnmen, ol' Seal'orth, in the county ot l'luron and Province of Ontario, Canada, have invented certain new and uset'ul Improvements in Molds tor the Manufacture of (lenient Blocks and Artilicial Stone: and I hereby declare that the t'ollowing is a lull, clear, and exact description of the same.

This invention relates to a portable mold for the manul'zn-ture of that class ot building material known as cement blocks" and artilicial stone" made l'rom sand or other silicious substances and Portland cement or tinely-pulverized lime. Satislactory results have been obtained by intimately mixing together in a dry state well-screened sharp pitsand containing not more thanthrec percent. loam or ashes or pulverized stone or other granular silicious material ot a line mesh with t'reshly-lmrnt lime or Portland cement until the coarser particles of the silicious material are coated with the liner particles of the cementing material then slightly moistening the mixture, then placing the mixture in the mold and tamping it into a homogeneous mass ot the required shape and densitv and finallyremovingit from the mold to the place where it is to season or harden.

()wing to the granular nature of the l'reshly-molded block and the susceptibility of its homogencitv to become shattered by the disintegration of its component granules, it is necessary not only to exercise the greatest care in removing it trom the mold, but also to so construct the mold that one of its sides may be employed as a tollmv-board or pallet upon which the molded block may be removed to the place where it is to season or harden.

For a hill understamlingof the invention rel'erence it to be had to the following description and to the accompanying drawings, in which Figure l is a perspective view of the moldbox, showing the side and end members in their closed position. Fig. 2 is a perspective view showing the mold-box upset to deliver the molded block with one of the side members removed and both end members opened,

so as to be moved out of contact with the molded block. Fig. 3 is a similar view to Fig. 2, but looking at it from the opposite side. Fig. r is a perspective view showing the bottom and end members of the moldbox.

Like letters ot reference rel'er to like parts throughout the specification and drawings.

The bottom member b of the mold-box is [ixed to the top surlace ol the base (1 so as to leave a margin 0 along each side to be engaged by the bottom edges ol" the side members (I and end members c. The end mem bers c are articulatingly connected to the base 1/ at the ends of the bottom member by suitable hinges f, and connected to the outer surfaces of the end members c are adjusting-arms 1 protruding through corresponding apertures /L in the base a between. the ends ot the bottom member I) and the end edges of the base (1 Over the apertures la are placed wear-plates i, having slots j alining with the apertures ll. to allow ol the movement of the arms g, and in the inner edges of the arms are notches 7; to engage the wearplates 'i for the purpose of preventing the dowmvard movement ol the arms 9 when adjusted to hold the end members ol the moldbox in their closed position against the ends of the bottom member I).

In assembling the parts of the mold-box the base (1 is set so that the bottom member I) will be uppermost. The end members are then closed against the ends of the bottom member I) and held in their closed position by the atljusting-arms, the downward movement ol which is prevented by the engagement of the notches with the wear-plates 'i. The side members (I are then placed in position against the sides of the bottom member I) and overlap the sides ol the end members (1 and are held in their closed position against the sides of the bottom and end members by a clamping device. This clamping device consists ol a rotatable shatt journalcd in bearings 112, secured to the under surlace ot' the base (I, and two arms 0 and 0, respectively connected to the shatt I on opposite sides of the base a to extend utnvardly, so that one or both may respectively engage the outer surface of one or both side members (1 when the parts of the mold-box are assembled. One clamping-arm, 0, may form an integral part of the shaft Z, while the other arm, 0, may be adjustably mounted upon the shaft and locked in position by a set-screw p. Fulcrumed to the clamping-arm 0 is a clamping-lever g, having a rounded face 7 to engage the outer surface of the adjacent side member d. When it is desired to lock the side members against the bottom and end members, the shaft Zis turned to position the arms 0 and 0 so that the arm 0 will engage one of the side members d and the other arm, 0, will be positioned Where the clampinglever Q will engage the outer surface of the adjacent side member (Z with sufficient pressure to draw the arm 0 tightly against the outer surface of the other side member (Z to bind both side members against the side edges of the end and bottom members.

When the mold is constructed for making sills and lintels, it will be necessary to employ two or more sets of clamping-arms suitably located, the number of such sets depending upon the dimensions of the mold. Forforming an angle-block both side members and one of the end members are fitted with extensions s projecting above their top edges t, and in the sides of the extensions 8 are grooves u to receive a removable cross-piece 1); When the block is molded, the mold-box is upset or turned into the position shown in Fig. 2, so that one of the side members (l may become the temporary bottom member and serve as a pallet or follow-board upon which the molded block may be carried away. The clamping-lever q is then turned to relieve the side members of its own pressure and that of the arm 0, so that the other side member cl may be withdrawn from the mold-box to relieve the adjacent surface of the molded block of any contact therewith. The notches 7r are then disengaged from the wear-plates i, so that the adj Listing-arms maybe moved downward and the end members opened to be out of contact with the molded block. It is now possible to remove the base and the bottom and end members from the molded block or to remove the molded block upon the pallet or follow-board from the base and the bottom and end members.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A mold for making cement blocks and artificial stone consisting of a bottom member, end members articulatingly connected thereto, locking-arms for the end members to rigidly hold them in their closed position, side members removable from the bottom member and rotatable clamping-arms to en gage the side members and hold them in position against the bottom and end members.

2. A mold for making cement blocks and artificial stone consisting of a bottom member, end members articulatingly connected thereto, locking-arms for the end members to.

rigidly hold them in their closed position, side members removable from the bottom member, rotatable clamping-arms to engage the side members and hold them in position against the bottom and end members, and a clamping means connected to one of the clamping-arms to increase the clamping pressure against the side members.

3. A mold for making cement blocks and artificial stone consisting of a bottom member, end members articulatingly connected thereto, locking-arms for the end members to rigidly hold them in their closed position, side members removable from the bottom member, a rotatable shaft below the bottom member, clamping-arms carried by the rota table shaft one of which is adapted to engage the outer surface of one of the side members, and a clamping-lever fulcrumed to the other clampingarm to engage the outer surface'of the other side member.

4. A mold for making cement blocks and artificial stone consisting ofa bottom member, end members articulatingly connected thereto, notched locking-arms for the end members to rigidly hold them in their closed position, side members removable from the bottom member, rotatable clamping-arms to engage the side members and slotted wearplates for the bottom member to engage the notched locking-arms for the end members.

Seaforth, August 19, A. D. 1904.

F. GUT TERIDGE.

In presence of JosErII WEBER, R. S. HAYS. 

